<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>关系运算符</title>
</head>
<body>
<script type="text/javascript">
    var a = "100";//string
    var b = 100;//number
    console.log(a == b);//true
    console.log(a === b);//false
</script>
</body>
</html>
